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Scintillator Based on SiO{sub 2}-Aerogel; Stsintillyator na osnove SIO{sub 2}-aehrogelya

Technical Report:

Abstract

By doping the SiO{sub 2}-aerogel with the wavelength shifter POPOP a scintillator with intermediate density between the gas and the solid state has been produced. The emission time and the light output of two samples with different concentration of the doping agent have been investigated. The light pulse shapes of the both samples are well approximated by a sum of two exponents with the decay times 1.4{+-}0.1 ns (58% of total light output) and 5.2{+-}0.4 ns (42%). Under irradiation of 5.5 MeV {alpha}-particles the light output of the sample with smaller wavelength shifter concentration was 30% and that of the sample with larger concentration was 8% of the light output of a plastic scintillator (polystyrene, 2% paraterphenil, 0.2% POPOP). Under irradiation of cosmic rays the light outputs of the samples exceeded the light output of the pure aerogel by 35% and 100% respectively. The obtained data point that the {alpha}/{beta} ratio for both samples is close to 1. (author). 10 refs., 9 figs., 1 tab.
Authors:
Bojko, I R; Ignatenko, M A; [1]  Esenak, K; Kuhta, L; Ruzicka, J; Fainor, V [2] 
  1. Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Problems
  2. Komenskeho Univ., Bratislava (Slovakia)
Publication Date:
Dec 31, 1994
Product Type:
Technical Report
Report Number:
JINR-R-13-94-305
Reference Number:
SCA: 440104; PA: AIX-26:011699; EDB-95:031036; SN: 95001324331
Resource Relation:
Other Information: DN: Submitted to Nuclear Instruments and Methods.; PBD: 1994
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; PHOSPHORS; SILICA GEL; ALPHA PARTICLES; CHERENKOV COUNTERS; COSMIC RADIATION; LUMINESCENCE; OPACITY; PERFORMANCE; PHOTOMULTIPLIERS; PLUTONIUM 239; POPOP; WAVELENGTHS; 440104; HIGH ENERGY PHYSICS INSTRUMENTATION
OSTI ID:
10112174
Research Organizations:
Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Problems
Country of Origin:
JINR
Language:
Russian
Other Identifying Numbers:
Other: ON: DE95613076; TRN: XJ9406567011699
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
15 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Bojko, I R, Ignatenko, M A, Esenak, K, Kuhta, L, Ruzicka, J, and Fainor, V. Scintillator Based on SiO{sub 2}-Aerogel; Stsintillyator na osnove SIO{sub 2}-aehrogelya. JINR: N. p., 1994. Web.
Bojko, I R, Ignatenko, M A, Esenak, K, Kuhta, L, Ruzicka, J, & Fainor, V. Scintillator Based on SiO{sub 2}-Aerogel; Stsintillyator na osnove SIO{sub 2}-aehrogelya. JINR.
Bojko, I R, Ignatenko, M A, Esenak, K, Kuhta, L, Ruzicka, J, and Fainor, V. 1994. "Scintillator Based on SiO{sub 2}-Aerogel; Stsintillyator na osnove SIO{sub 2}-aehrogelya." JINR.
@misc{etde_10112174,
title = {Scintillator Based on SiO{sub 2}-Aerogel; Stsintillyator na osnove SIO{sub 2}-aehrogelya}
author = {Bojko, I R, Ignatenko, M A, Esenak, K, Kuhta, L, Ruzicka, J, and Fainor, V}
abstractNote = {By doping the SiO{sub 2}-aerogel with the wavelength shifter POPOP a scintillator with intermediate density between the gas and the solid state has been produced. The emission time and the light output of two samples with different concentration of the doping agent have been investigated. The light pulse shapes of the both samples are well approximated by a sum of two exponents with the decay times 1.4{+-}0.1 ns (58% of total light output) and 5.2{+-}0.4 ns (42%). Under irradiation of 5.5 MeV {alpha}-particles the light output of the sample with smaller wavelength shifter concentration was 30% and that of the sample with larger concentration was 8% of the light output of a plastic scintillator (polystyrene, 2% paraterphenil, 0.2% POPOP). Under irradiation of cosmic rays the light outputs of the samples exceeded the light output of the pure aerogel by 35% and 100% respectively. The obtained data point that the {alpha}/{beta} ratio for both samples is close to 1. (author). 10 refs., 9 figs., 1 tab.}
place = {JINR}
year = {1994}
month = {Dec}
}